There are multiple definitions - click on the translation that matches your context.

certificar

verbo

full

certify

verb

Definitions of certify

to say officially that something is correct, true, accurate, or of an acceptable standard

The authorities refused to certify that its facilities meet federal security requirements.

to give someone an official document that proves that they have successfully finished a course of training or that they have passed an examination

She was certified last week by the Austrian Bar Council.

to say officially that someone has a mental illness

He was certified under the Mental Health Act.